- Compact and Portable Design : Measuring just 5.5 x 2.7 inches, this portable water bottle pump is easy to carry and perfect for various settings including the kitchen, office, school, barbecues, travel, and camping. It serves as an excellent alternative to bulky 5-gallon water dispensers. - Wide Compatibility : Our drinking water pump is designed to work with most 3L to 18.9L water bottles. It fits gallon barrels with a neck size of 2.16 inches (5.5 cm). Ensure the compatibility of your water bottle by checking the neck size before purchasing. - Innovative Safety Features : Equipped with a smart safety lock, our water pump offers added security. Activate the lock with a long press for 3 seconds, and unlock it the same way. The one-button operation includes an automatic shut-off feature that stops dispensing once 600ml of water is reached after pressing the button twice. - USB Rechargeable Battery : This water jug pump features a powerful 1200 mAh rechargeable battery, allowing for 30-50 days of use on a full charge. Ideal for small families, it can easily handle 4-6 bottles of 5-gallon water per charge, requiring only monthly recharging. - Practical Applications : Use this water pump in various scenarios such as filling water bottles at the office, hydrating guests during outdoor gatherings, or conveniently accessing drinking water while camping. Its user-friendly design and efficiency make it a must-have for everyday hydration needs.